EVB71112
868/915MHz Receiver
Evaluation Board Description
2.2
2.2.1
ASK Application Circuit
Circuit Diagram for ASK Reception
OUT_OA
GND
1 2
ASK output
CB3
VCC
OAN 19
OUT_OA 18
VCC 17
16
OUT_IFA 15
VCC 14
C16
C17
R4
XTAL
C1
OUTP 23
RSSI 21
24
OAP 20
VEE 22
GND
RO
VCC
ENRX
GND
IN_LNA
1 2
VCC
1 2 3
C_RO
CB2
R1
C3
25 VEE
26 RO
27 VCC
28 ENRX
29 LF
30 VEE
RSSI
GND
1 2
VCC
CB4
C9
C11
C10
TH71112
GAIN_LNA
OUT_LNA
IN_MIX1
FBC2 13
FBC1 12
IN_IFA 11
VEE 10
OUT_MIX2 9
IF1N
VCC
R2
L1
50
6
1
SAWFIL
3
4
L2
C5
31 IN_LNA
32 VCC
VEE
IF1P
VEE
C4
CERFIL
CB1
1
2
3
4
5
6
7
8
C7
L4
C8
CB5
L5
CB6
L3
VCC
CB8
CB7
GND
VCC
2 1
39012 71112 01
Rev. 011
Page 9 of 14
EVB Description
June/07